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Finding the Fourth Proportional to 299,191.25, 412,874.45 and 170,143.74

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Solution

The fourth proportional to 299,191.25, 412,874.45 and 170,143.74 is: 234,792.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,191.25 : 412,874.45 = 170,143.74 : x
  2. Step 2: Convert to fraction form
    299,191.25/412,874.45 = 170,143.74/x
  3. Step 3: Cross multiply
    299,191.25x = 412,874.45 × 170,143.74
  4. Step 4: Simplify right side
    299,191.25x = 70,248,003,073.44
  5. Step 5: Solve for x
    x = 70,248,003,073.44/299,191.25
  6. Step 6: Final answer
    x = 234,792.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.